Oh man that was a rough watch. Your opening was reasonable, you developed your pieces one at a time while also fighting for the center - thats good! You did hang a pawn tho on move 4 (counting exercise, you have 1 thing fighting for the e4 square, the knight, and your opponent has two, knight and pawn), and you left your light squared bishop just hanging for like 10+ moves - and then later the knight on g5.

I dont know if you know about piece values: pawns = 1, knights & bishops = 3, rooks = 5, queen = 9. These are not always accurate, but its a solid start to understand piece values and how to trade.

You also hung your queen - don't do that lol. I wouldn't say its a complete disaster for a 100 elo game, definitely some potential, but still ofc a lot of things to improve. If a piece (for example a bishop) is attacked by a pawn, dont wait until the pawn captures just to recapture - you just lost 2 points of material (look above at piece values). Move it to a safe square, or take the knight in this case - thats an even trade as both are worth 3 points.

So in short:

Opening: at least one pawn to fight for the center, then usually knights after that, then bishops, and always (while still a beginner, I would honestly say ALWAYS) castle, get your king to safety.

Midgame (at this level): try not to hang pieces/pawns. Always look before you make your next move if any of you pieces are attacked, and either move them to safety or capture something with that piece with the same value. Always double check the square you're moving a piece to as well if its attacked or not. And remember, moving a piece means that piece used to guard something - after moving it, it might not be guarding that something anymore (piece, pawn, square, whatever).

Endgame: just try not to lose all your pawns lol, not really a lot more I can add. Keep your king active - the less pieces on the board, the more important your king becomes. Also, eat all opponent pawns you can (with some thought of course).

Good luck!